STC SA2721SO
FAA DRS lists SA2721SO as Current · Reissued, held by Honeywell International Inc, for Boeing 737-500 Series and Boeing 737-300 Series. Recorded change: Installation of a dual TRA-67 Mode S Transponder system. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of a dual TRA-67 Mode S Transponder system.
SA2721SO identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: Boeing 737-500 Series and Boeing 737-300 Series. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Boeing 737-500 Series and Boeing 737-300 Series model, serial range, and configuration?
- 02Which part numbers, software versions, interfaces, and manual changes apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
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